Disease causing organisms are referred to as

A. vectors

B. pathogens

C. pests

D. insects

Which of the following is not a viral disease of crops?

A. cocoa swollen shoot

B. tobacco mosic

C. tomato leaf curl

D. banana blight

Smut diseases are often found on

A. maize

B. cassava

C. cowpea

D. grapes

The mosaic appearance on cassava leaves is caused by

A. pests

B. bacteria

C. virus

D. nematode

Progesterone is secreted by the

A. corpus luteum

B. seminal vesicle

C. cowper's gland

D. testes

The hormone responsible for milk let-down in cows is

A. oxytocin

B. adrenaline

C. oestrogen

D. progesterone

The secretion of reproductive and growth hormone in animals is controlled by the

A. prostate gland

B. pituitary gland

C. adrenal gland

D. ovary

During the process of egg formation, albumen deposition begins in the

A. ovary

B. magnum

C. isthmus

D. uterus

Parturition in the doe (rabbit) is referred to as

A. kidding

B. kindling

C. garrowing

D. lambing

Maintenance of osmotic balance in body cells of animals is regulated by

A. calcium and phosphorus

B. magnesium and calcium

C. sodium and potassium

D. iron and phosphorus